将数据从 R 网化到 python 并再次返回到 R

Question

我哪里错了？我在 RStudio 中，我想对 Python 中的一些文本数据进行一些处理，然后将其带回 R 进行最终分析/绘图，但出现错误：

NameError: name 'df_py' is not defined

数据与代码：

text <- c("Because I could not stop for Death -",
              "He kindly stopped for me -",
              "The Carriage held but just Ourselves -",
              "and Immortality")

    ID <- c(1,2,3,4)

    df <- data.frame(cbind(ID, text))


    library(reticulate)

    df_py <- r_to_py(df)

    repl_python()

    df_py_clean['text'] = df_py['text'].str.replace("[^a-zA-Z]", " ")
    df_py_clean['text'] = df_py['text'].str.lower()
    exit

Answer 1

一旦我们进入 python REPL，使用 r. 访问对象

library(reticulate)
df_py <- r_to_py(df)
repl_python()
>>> r.df_py
#  ID                                    text
#0  1    Because I could not stop for Death -
#1  2              He kindly stopped for me -
#2  3  The Carriage held but just Ourselves -
#3  4                         and Immortality

现在进行转换

>>> r.df_py['text'] = r.df_py['text'].str.replace("[^a-zA-Z]", " ")
>>> r.df_py['text'] = r.df_py['text'].str.lower()
>>> exit

调用来自 R

的对象

df_py
# ID                                    text
#0  1    because i could not stop for death  
#1  2              he kindly stopped for me  
#2  3  the carriage held but just ourselves  
#3  4                         and immortality

注意：不清楚 df_py_clean 对象的创建时间。因此，我们不是那样，而是从 python

更新相同的对象列

注意 2：从 R 环境访问 python 对象的逆过程是 py$

数据

text <- c("Because I could not stop for Death -",
              "He kindly stopped for me -",
              "The Carriage held but just Ourselves -",
              "and Immortality")
ID <- c(1,2,3,4)
df <- data.frame(ID, text)

将数据从 R 网化到 python 并再次返回到 R

Reticulate data from R to python and back to R again

python

r

reticulate

数据